States of consciousness
split Brain Patients
A split brain surgery is a procedure that severs a large band
of axons that connects the 2 hemispheres of the brain known
as the corpus callosum
Initial purpose was to reduce the frequency o severity of
seizures associated w
epilepsy
Since the 2 hemispheres can no longer communicate awareness of
behaviour is altered
Left hemisphere controls the right side of the body while
the right hemisphere controls the left side of the body
Left hemisphere controls speech
Components of consciousness
Consciousness is the result of several processes in the brain
that can operate independently and interact with one another depending
on what the task demands
States of consciousness refers to the different levels of arousal
and attention
Experiance of a particular state of consciousness is based on several
unconscious 0 involuntary processes
, Attention
Selective attention occurs when you attend to 1 source of info
while ignoring other stimuli at the same time
Stimulus salience bottom up qualities of a scene that influence how
we direct attention
Attentional capture occors when attention is diverted b c of the
salience of a stimulus
Top down processing also plays a role in guiding selective attention
Cocktail party effect at a party a person can focus on a convo and
ignore all the other info around them selective attention
Dihotic listening an attention task where a message is streamed to
1 ear and another message to the other ear
Divided Attention
Aka multitasking when we attend to 2 or more tasks at the same
time
Automaticity refers to fast r effortless processing of info w out
conscious thought
Inattentional Blindness o change detection
Inattentional Blindness the tendency to miss changes to some kinds of info
when your attention is engaged elsewhere
Inhibition the process of actively reducing processing of some info
while brain attends to a specific task
split Brain Patients
A split brain surgery is a procedure that severs a large band
of axons that connects the 2 hemispheres of the brain known
as the corpus callosum
Initial purpose was to reduce the frequency o severity of
seizures associated w
epilepsy
Since the 2 hemispheres can no longer communicate awareness of
behaviour is altered
Left hemisphere controls the right side of the body while
the right hemisphere controls the left side of the body
Left hemisphere controls speech
Components of consciousness
Consciousness is the result of several processes in the brain
that can operate independently and interact with one another depending
on what the task demands
States of consciousness refers to the different levels of arousal
and attention
Experiance of a particular state of consciousness is based on several
unconscious 0 involuntary processes
, Attention
Selective attention occurs when you attend to 1 source of info
while ignoring other stimuli at the same time
Stimulus salience bottom up qualities of a scene that influence how
we direct attention
Attentional capture occors when attention is diverted b c of the
salience of a stimulus
Top down processing also plays a role in guiding selective attention
Cocktail party effect at a party a person can focus on a convo and
ignore all the other info around them selective attention
Dihotic listening an attention task where a message is streamed to
1 ear and another message to the other ear
Divided Attention
Aka multitasking when we attend to 2 or more tasks at the same
time
Automaticity refers to fast r effortless processing of info w out
conscious thought
Inattentional Blindness o change detection
Inattentional Blindness the tendency to miss changes to some kinds of info
when your attention is engaged elsewhere
Inhibition the process of actively reducing processing of some info
while brain attends to a specific task
